| config PCI |
| bool "PCI support" |
| depends on SYS_SUPPORTS_PCI |
| help |
| Find out whether you have a PCI motherboard. PCI is the name of a |
| bus system, i.e. the way the CPU talks to the other stuff inside |
| your box. If you have PCI, say Y, otherwise N. |
| |
| config SH_PCIDMA_NONCOHERENT |
| bool "Cache and PCI noncoherent" |
| depends on PCI |
| default y |
| help |
| Enable this option if your platform does not have a CPU cache which |
| remains coherent with PCI DMA. It is safest to say 'Y', although you |
| will see better performance if you can say 'N', because the PCI DMA |
| code will not have to flush the CPU's caches. If you have a PCI host |
| bridge integrated with your SH CPU, refer carefully to the chip specs |
| to see if you can say 'N' here. Otherwise, leave it as 'Y'. |
